25:15
Why do larger diameter cartridges give up less velocity with shorter barrels than small diameter alternatives?
Surface area of the projectile factors into the pressure generated during the firing process.
Pressure increases with smaller diameter but higher velocity cartridges.

26:55
You want to ensure that your bullet stays supersonic until it reaches the target.
What happens when your bullet’s velocity falls below supersonic in flight?

28:26
Follow up on questions about nitride and potential nitride concerns.
Krieger Barrel’s email about nitride.
The nitride processing is done by a 3rd party, not the barrel manufacturer. Warranty concerns.
Nitriding a poorly manufactured barrel means you actually could make it worse.
The nitride process, temperature and what can go wrong if done improperly.
When done properly, multiple manufacturers agreed that it is a good solution.
QC on barrels post nitride process.